Timothy Xu, MD
NPI 1699351635 · Ophthalmology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Xu, MD is a Ophthalmology Physician provider in Philadelphia, PA (NPI 1699351635).
Provider details
- NPI number
- 1699351635
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 31532 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
180 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 48 | $130 |
| Imaging of Retina92134 | 26 | $41 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $181 |
| Imaging of Optic Nerve92133 | 17 | $35 |
| Exam of Visual Field With Extended Testing92083 | 15 | $66 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 15 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 85 | 29 |
| Prednisolone Acetate | 79 | 57 |
| Ketorolac Tromethamine | 55 | 42 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 31 | 17 |
| Moxifloxacin Hclbrand: Moxifloxacin | 29 | 24 |
| Ofloxacin | 28 | 22 |
| Brimonidine Tartrate | 21 | — |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$148 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 200 1st St SwRochester, MN 55905-0002Phone: (507) 284-2511
Registry dates
- Enumerated
- 2021-03-21
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Timothy Xu's NPI number?
- Timothy Xu's National Provider Identifier (NPI) is 1699351635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Xu's specialty?
- Timothy Xu is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Xu located?
- Timothy Xu's practice location on file with NPPES is 840 Walnut St Ste 1020, Philadelphia, PA 19107-5109.
- What is Timothy Xu's phone number?
- The practice phone number listed in the NPPES registry for Timothy Xu is (800) 331-6634.
- Does Timothy Xu accept Medicare?
- Timothy Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Xu's NPI active?
- Yes — Timothy Xu's NPI (1699351635) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.